Isa Bios Nmi Handler Messages - IBM B01 Service Manual

IOSP
Message
Parity Error ????
ISA BIOS NMI Handler Messages
Description
The BIOS has encountered a parity error with some
memory in the system, but it is not able to determine the
address of the error.
The ISA NMI (non-maskable interrupt) messages are described below.
Message Description
Memory Parity Error
Memory failed. The message appears as follows:
MEMORY PARITY ERROR AT XXXXX
where XXXXX is the address (in hexadecimal) at which
the error has occurred. If the memory location cannot be
determined, the message is "Memory Parity Error ????"
liD Card Parity Error
An expansion card failed. The message appears as
follows:
liD PARITY ERROR AT XXXXX
where XXXXX is the address (in hexadecimal) at which
the error has occurred. If the address cannot be
determined, the message is "liD Card Parity Error ????"
DMA Bus Time-Out
A device has driven the bus signal for more than 7.8
microseconds.
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Service Guide
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